654412501 has 4 divisors (see below), whose sum is σ = 692907372. Its totient is φ = 615917632.

The previous prime is 654412469. The next prime is 654412513. The reversal of 654412501 is 105214456.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 585688401 + 68724100 = 24201^2 + 8290^2 .

It is a cyclic number.

It is not a de Polignac number, because 654412501 - 2⁵ = 654412469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 654412501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654412541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19247410 + ... + 19247443.

It is an arithmetic number, because the mean of its divisors is an integer number (173226843).

Almost surely, 2^654412501 is an apocalyptic number.

It is an amenable number.

654412501 is a deficient number, since it is larger than the sum of its proper divisors (38494871).

654412501 is a wasteful number, since it uses less digits than its factorization.

654412501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38494870.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 654412501 is about 25581.4874665255. The cubic root of 654412501 is about 868.1948305989.

Adding to 654412501 its reverse (105214456), we get a palindrome (759626957).

The spelling of 654412501 in words is "six hundred fifty-four million, four hundred twelve thousand, five hundred one".